Author:Erasmus, TCDate:1977Earlier studies have indicated that Umgala coal is prone to spontaneous heating and that ignition is likely to occur unless special precautions are taken during stockpiling.Read more
Author:Kirkbride, TDate:Nov 2007Technology is transforming the games themselves and at times with dire consequences. Tony Kirkbride, Head: CSIR Technology Centre said there are a variety of sports technologies and there have been advances in material sciences and advances ...Read more
Author:Hanekom, EC; Barkenhuysen, FADate:Aug 1975Relatively stable concentrated DCCA solutions with a low pH value were obtained by using a mixture of an organic and an inorganic acid.Read more
Author:Curtayne, PC; Walker, RNDate:26 Jan 2009The need for describing the condition of pavements occurs frequently in highway engineering. Accurate descriptions are a prerequisite for establishing procedures with which to evaluate the various aspects of the pavement condition. A variety ...Read more
Author:Cooper, Antony KDate:Jun 1993The purpose of this dissertation is to assess digital geo-referenced information and standards for exchanging such information, especially the South African National Exchange Standard (NES). The process of setting up a standard is exacting. ...Read more
Author:Gee, EDate:Sep 1978Using the techniques developed by other workers have been made which demonstrate the usefulness of staple strength as a reflection of wool soundness.Read more
Author:Gee, EDate:Aug 1976Some of this data together with data as yet unpublished, were used in this present report with the object of obtaining a statistical assessment of the accuracy of the MSS (Mean Spindle Speed) at break technique.Read more
Author:Roberts, MKCDate:Dec 1995This project had two objectives namely: Develop a rationale for the design of stope support systems. Determine support resistance criteria for the support of stope gullies for both static and dynamic loading and develop improved support systems ...Read more
Author:La Grange, CCDate:1951This paper investigates the storage of coal with regards to specifically coal deterioration and combustion properties.Read more
Author:La Grange, CCDate:1951Although the storage of coal is probably almost as old as its use and is practiced on a smaller or larger scale by all coal consumers, there are certain aspects and problems associated with coal storage, which require very careful consideration ...Read more
Author:Viljoen, GADate:1973Amplifier to be described was developed and built as a requirement for the "Delayed Coking" apparatus constructed at the Institute.Read more
Author:Bonapace, ACDate:1977The friction factor of a stream carrying a fully suspended load of particles is analyzed. Friction factors of the suspension coincide with those of the pure liquid, if referred to the actual fluid velocity, i.e. less than the friction factors ...Read more
Author:Bonapace, ACDate:1977In this paper some hydraulic phenomena are discussed which are relevant to the hydraulic transport of particles in a fully suspended state.Read more
Author:Hall, GC; Gorgens, AHMDate:Mar 1978Several South African rivers are polluted by mineral salts of diffuse source. This pollution can be related to geological phenomena and to irrigation practices. Mineralization is problematic in that it can render surface waters unsuitable for ...Read more
Author:Smuts, S; Hunter, LDate:Jun 1976Wool/acrylic intimate blend yarns, ranging from all wool to all acrylic, were prepared by blending a 64s quality merino wool either a 3.3 or 4.9 decitex regular acrylic.Read more
Author:Smuts, S; Hunter, LDate:Jun 1977Plain weave and 2/2 twill lightweight fabrics (200 g/m) made from all-wool, all-acrylic and a range of intimate blends of these two fibre were treated with a polyurethane polymer from a solvent system and a mixture of the bisulphite adduct ...Read more
Author:Shiloh, M; Slinger, RIDate:Dec 1972Plain weave, light weight sitting fabrics were constructed from blends of wool and three types of polyester fibres at various levels of composition.Read more
Author:Shiloh, M; Slinger, RIDate:Mar 1973Two blends of dichloro-isocyanuarate (DCCA) treated wool tops and law pilling polyester fibres were prepared, in the ratio of 80/20 and 60/40 wool/polyester.Read more